Injection moulding of a catheter

Details Injection moulding of a catheter Injection moulding of a catheter

2003-11-14

2008-10-07

Heitbrink, Jill L (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

C264S334000

Reexamination Certificate

active

07431876

ABSTRACT:
A method for one-piece injection molding of a soft needle catheter having a hub and a tube-shaped flexible part. According to the method, a molten polymer is fed into a mold which includes a core that is used to form the interior of the catheter, the core defining a hub cavity and a tube-shaped cavity. The hub cavity includes a cone-shaped part and a cylindrical part, with the cone-shaped part extending into the tube-shaped cavity. When the polymer is sufficiently cured, the core is removed from the catheter and the catheter is removed from the mold.

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Menges, Georg et al., How to Make Injection Molds, 3rdedition, Hanser Publishers, 2001, pp. 401-420.

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